TC86F-1-202 Equivalent & Substitute Parts

Part Overview

The TC86F-1-202 is a 2 kOhms, 0.3W through-hole trimmer potentiometer manufactured by Bourns Inc. as part of the Trimpot® TC86 series. This component features cermet resistive material, top adjustment, and PC pin termination for through-hole mounting applications. The TC86F-1-202 is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and production continuity.

Substiute Parts

TC86F-1-202

Bourns Inc.In Stock: 779TC86F-1-202 Datasheet

Current PartRFQ

3306F-1-202

Bourns Inc.In Stock: 47193306F-1-202 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TC86F-1-202 is based on the following critical parameters that must remain consistent:

• Resistance value: 2 kOhms (exact match required)
• Adjustment type: Top Adjustment (functional requirement)
• Resistive material: Cermet (performance characteristic)
• Mounting type: Through Hole (PCB integration requirement)
• Termination style: PC Pins (connection method)
• Number of turns: 1 (adjustment range)
• Temperature coefficient: ±250ppm/°C (thermal stability)

The 3306F-1-202 qualifies as a substitute based on matching all critical parameters. Variations in power rating (0.3W vs. 0.2W) and tolerance (±20% vs. ±25%) are within acceptable engineering margins for trimmer potentiometer applications. Minor dimensional differences (0.319" x 0.268" vs. 0.303" x 0.268") do not preclude mechanical compatibility in standard through-hole layouts.

Parameter Comparison

Engineering Selection Recommendations

The 3306F-1-202 is the primary substitute for the obsolete TC86F-1-202. Both components are manufactured by Bourns Inc. and maintain identical compliance certifications (ROHS3, REACH Unaffected, EAR99 ECCN classification). The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

The 3306F-1-202 operates at a lower power rating (0.2W vs. 0.3W). This difference is acceptable in applications where the original 0.3W specification provides design margin. Verify that circuit operating conditions do not require the full 0.3W capacity before implementation.

The substitute exhibits a wider tolerance band (±25% vs. ±20%). Applications requiring tighter initial accuracy should account for this specification change during design validation.

Frequently Asked Questions (FAQ)

Q: Can the 3306F-1-202 be used as a direct replacement for the TC86F-1-202?

A: Yes, the 3306F-1-202 qualifies as a substitute based on matching resistance value, adjustment type, resistive material, mounting method, and termination style. Verify that the lower power rating (0.2W) and wider tolerance (±25%) are acceptable for your application.

Q: What are the physical differences between these parts?

A: The 3306F-1-202 has a slightly wider face dimension (0.319" vs. 0.303" width). The height remains identical at 0.268". Confirm that PCB layout accommodates the additional 0.016" width before implementation.

Q: Are both parts RoHS compliant?

A: Yes, both the TC86F-1-202 and 3306F-1-202 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Why is the TC86F-1-202 obsolete?

A: The TC86F-1-202 has been discontinued by the manufacturer. The 3306F-1-202 from the active Trimpot® 3306 series provides equivalent functionality with ongoing production support.

Q: Does the lower power rating affect circuit performance?

A: The 0.2W rating of the 3306F-1-202 is sufficient for standard trimmer potentiometer applications. Confirm that your circuit dissipation does not exceed 0.2W across the potentiometer element. If the original design requires the full 0.3W capacity, alternative components may be necessary.

Q: Are the tolerance differences significant?

A: The 3306F-1-202 tolerance of ±25% is wider than the TC86F-1-202 tolerance of ±20%. For applications requiring precise initial calibration, account for this additional tolerance band during design validation and testing procedures.